I do have a 3 TB btrfs - formatted disc at my tinderbox, where deleting 15 chroot images of gentoo images took now about 3 hours (~35 GB for each image).
I'm wondering if and how subvolumes would help to speed up the wiping of a chroot image.

Last edited by toralf on Thu May 21, 2015 2:36 pm; edited 1 time in total